Through Transport Mutual Insurance Association Limited and TT Club Mutual Insurance Limited, trading as the TT Club. TT Club Mutual Insurance Limited is authorised in the UK by the Prudential Regulation Authority and regulated in the UK by the Financial Conduct Authority and Prudential Regulation Authority. In Hong Kong, TT Club Mutual Insurance Limited is authorised and regulated by the Hong Kong Insurance Authority, in Singapore by the Monetary Authority of Singapore and in Australia by the Australian Prudential Regulation Authority. In the United States, TT Club Mutual Insurance Limited is approved as a surplus lines insurer in all states and is accessible through properly licensed surplus lines brokers.

Through Transport Mutual Insurance Association Limited is authorised and regulated in Bermuda by the Bermuda Monetary Authority and is authorised in the UK by the Prudential Regulation Authority and regulated in the UK by the Financial Conduct Authority and Prudential Regulation Authority.